Question

GEOMETRY. NEED HELP NOW PLEASE!!

Find m∠BAC in circle O. (The figure is not drawn to scale.)

A. 170
B. 47.5
C. 42.5

Answer 1

So here we go, lines OA and OB are radii of the circle O
since the measurement of ∡ O is given it is easy to find the other measurements.
180-85 = 95° (all the sides of a triangle = 180°)
That angle divided by two

`(95)/(2)` = 47.5°
We know that the radii are the sides which makes that triangle isosceles.
So m∡BAC = 47.5°
Answer is B)47.5